current bounds on the number of colors: 0 -- 224 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:37:35 2012 Optimize a model with 28672 rows, 25342 columns and 110432 nonzeros Presolve removed 27 rows and 3024 columns Presolve time: 0.14s Presolved: 28645 rows, 22318 columns, 107408 nonzeros Variable types: 0 continuous, 22318 integer (22318 binary) Root relaxation: objective 0.000000e+00, 379 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (379 simplex iterations) in 0.17 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 112 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:37:35 2012 Optimize a model with 14448 rows, 12798 columns and 55216 nonzeros Presolve removed 27 rows and 1512 columns Presolve time: 0.13s Presolved: 14421 rows, 11286 columns, 53704 nonzeros Variable types: 0 continuous, 11286 integer (11286 binary) Root relaxation: objective 0.000000e+00, 382 iterations, 0.01 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (382 simplex iterations) in 0.14 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 56 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:37:36 2012 Optimize a model with 7336 rows, 6526 columns and 27608 nonzeros Presolve removed 27 rows and 756 columns Presolve time: 0.05s Presolved: 7309 rows, 5770 columns, 26852 nonzeros Variable types: 0 continuous, 5770 integer (5770 binary) Root relaxation: objective 0.000000e+00, 375 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (375 simplex iterations) in 0.05 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 28 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:37:36 2012 Optimize a model with 3780 rows, 3390 columns and 13804 nonzeros Presolve removed 27 rows and 378 columns Presolve time: 0.02s Presolved: 3753 rows, 3012 columns, 13426 nonzeros Variable types: 0 continuous, 3012 integer (3012 binary) Root relaxation: objective 0.000000e+00, 400 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (400 simplex iterations) in 0.02 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 14 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:37:36 2012 Optimize a model with 2002 rows, 1822 columns and 6902 nonzeros Presolve removed 27 rows and 189 columns Presolve time: 0.01s Presolved: 1975 rows, 1633 columns, 6713 nonzeros Variable types: 0 continuous, 1633 integer (1633 binary) Root relaxation: objective 0.000000e+00, 362 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (362 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 7 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:37:36 2012 Optimize a model with 986 rows, 926 columns and 2958 nonzeros Presolve removed 27 rows and 81 columns Presolve time: 0.00s Presolved: 959 rows, 845 columns, 2877 nonzeros Variable types: 0 continuous, 845 integer (845 binary) Root relaxation: objective 0.000000e+00, 372 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time * 0 0 0 0.0000000 0.00000 0.0% - 0s Explored 0 nodes (372 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0% current bounds on the number of colors: 0 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:37:36 2012 Optimize a model with 478 rows, 478 columns and 986 nonzeros Presolve removed 478 rows and 478 columns Presolve time: 0.00s Explored 0 nodes (0 simplex iterations) in 0.00 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound -, gap - current bounds on the number of colors: 1 -- 3 Gurobi 5.0.1 (linux64) logging started Sat Dec 15 16:37:36 2012 Optimize a model with 732 rows, 702 columns and 1972 nonzeros Presolve removed 230 rows and 260 columns Presolve time: 0.00s Presolved: 502 rows, 442 columns, 1506 nonzeros Variable types: 0 continuous, 442 integer (442 binary) Root relaxation: objective 0.000000e+00, 230 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 0.00000 0 191 - 0.00000 - - 0s 0 0 infeasible 0 - 0.10000 - - 0s Explored 0 nodes (724 simplex iterations) in 0.01 seconds Thread count was 1 (of 16 available processors) Model objective exceeds cutoff Best objective -, best bound 1.000000000000e+00, gap - optimal solution found: number of colors: 3